Steam Boilers, Engines, Nozzles and Turbines The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is Could be more or less depending on other factors More Less Same Could be more or less depending on other factors More Less Same ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is not a boiler mounting? Feed check valve Blow off cock Economiser Fusible plug Feed check valve Blow off cock Economiser Fusible plug ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of total useful heat drop to the total isentropic heat drop, is called None of these Stage efficiency Rankine efficiency Internal efficiency None of these Stage efficiency Rankine efficiency Internal efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines On Millier chart, the constant pressure lines Diverge from left to right Are equally spaced throughout Diverge from right to left First rise up and then fall Diverge from left to right Are equally spaced throughout Diverge from right to left First rise up and then fall ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = V cos α Vb = V² cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not the correct statement about moisture in coal? Inherent moisture and surface moisture are different things Some moisture in coal helps in better burning which is not possible with completely dry coal In some coals moisture may be present up to 40% It increases thermal efficiency Inherent moisture and surface moisture are different things Some moisture in coal helps in better burning which is not possible with completely dry coal In some coals moisture may be present up to 40% It increases thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
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